This preview shows page 1. Sign up to view the full content.
Unformatted text preview: ther south (Hall
2005, pp. 60–64).
Using data on initial population densities, I check whether it
was the more prosperous or less prosperous areas that selected
into the slave trades. Acemoglu, Johnson, and Robinson (2002)
have shown that population density is a reasonable indicator of
economic prosperity. Figure IV shows the relationship between
the natural log of population density in 1400 and ln(exports/area).
The data conﬁrm the historical evidence on selection during the
slave trades.12 The ﬁgure shows that the parts of Africa that were
12. The relationship is similar if one excludes island and North African countries, or if one normalizes slave exports by population rather than land area. Figure shows that parts of Africa that were the most prosperous in 1400
(measured by population density) tend also to be the areas that were most
impacted by the slave trades evidence suggests that societies that were the most prosperous, not
the most under developed, that selected into the slave trades unlikely that the strong relationship between slave exports and
current income is driven by selection Instrumental Variables
Use instruments that are correlated with slave exports but are
uncorrelated with other country characteristics
As instruments for slave exports use distances from each African country to the locations where the
slaves were demanded
Validity of these instruments relies on presumption: although location of demand influenced the location of supply loca...
View Full Document
This document was uploaded on 02/26/2014 for the course ECON 541 at The University of British Columbia.
- Spring '14